Duplicating apparatus



June 10, 1941-. H, JA GER 2,244,780

DUPLI CAT IN G APPARATUS Filed May 13, 1940 5 Sheets-Sheet 1 ara'g'in'a: 5.: O

Julie 10, 1941. AGGER 2,244,780

DUPLICATING APPARATUS Filed May 13, 1940 5 Sheets-Sheet 2 June 10, 1941. H. JAGGER 2,244,780

DUPLICATING APPARATUS Filed May 13, 1940 5 Sheets-Sheet 4 June 10, 1941. H. JAGGER DUPLICATING APPARATUS Filed May 15, 1940 5 Sheets-Sheet 5 Patented June 10, 1941 DUPLICATING APPARATUS Hubert Jagger, Maywoo'd, 111., assignor to Ditto, Incorporated, Chicago, 111., a corporation of West Virginia Application May 13,1940, Serial No. 334,851

('01. 1ill133) 17 Claims.

This invention relates to duplicating machines of the hectograph type and particularly to the type of machine as shown in my Letters Patent No. 2,188,599, dated January 30, 1940, which is provided especially for use with pay roll work for transferring the data from the master sheet either to a series of copy sheets in the form of pay checks or to a series of copy sheets in the form of individual yearly record cards. t is the principal object of the invention to improve machines of this type with respect to the means for supporting and positioning copy sheets for the transfer thereto of a selected portion of the subject matter carried by the gelatin master sheet, and for insuring that the copy sheets shall be in the required position for causing the printing to take place at the selected point on the copy sheet.

In machines of this type, a carriage is provided having a table or tray thereon for supporting a series of copy sheets of the record card type independently of the means for supporting pay checks or the like, together with means for giving the carriage a step by step movement with respect to the gelatin master sheet so that successive lines of the. subject; matter on the master sheet shall be printed by successive operations of the machine on the several copy sheets placed on the tray one at a time. In many cases, the copy sheets are provided with a plurality of lines at any one of which the printing may be effected under the control of adjustable margin means carried by the table or tray. For example, pay roll subject matter for any particular week carried by the master sheet may be copied on the individual record cards of the diflerent workers, the data for all of the Workers being printed on correspondingly numbered lines of the several copy sheets or cards.

In the arrangement shown, the means for giving the carriage a step by step movement corresponds substantially to the construction shown by said prior Letters Patent, but a new and improved form and arrangement of parts is provided. for controlling the positioning of the copy sheets on the carriage. This means comprises a margin bar positioned transversely of the table or tray and mounted so as to be capable of being readily and quickly adjusted on the carriage longitudinally of the machine. In the preferred arrangement, the margin bar is positioned so as to rest on the tray and to be slidable along the face of the tray, and the means for holding the margin bar in adjusted position longitudinally of the machine is arranged in the form of a clutch adapted to resist movement of the margin bar from its successive normal stop positions while being at the same time adapted to yield readily for adjustment from one stop position to another upon the application of pressure thereto for the purpose of effecting an adjustment.

The improved arrangement comprises also margin stop devices adjustable on the margin bar transversely of the machine so as to be available for convenient use for adjusting the copy sheets transversely of the gelatin master sheet. In the preferred arrangement, two of such margin stop devices are provided, one at each side of the machine, arranged so as to be available for use alternatively for engagement with one or the other side edge of the copy sheet.

The improved apparatus comprises further improved means for connecting the front portion of the table or tray with the body portion thereof so as to enable such front portion to be very quickly and easily removed when desired.

It is another object of the invention to improve machines of this type in sundry details hereinafter pointed out. The preferred means by which the several objects have been attained are illustrated in the accompanying drawings, in which Fig. 1 is a top plan view of the preferred form of the improved machine;

Fig. 2 is a side face view of the machine of Fig. 1;

Fig. 3 is a front face view of a fragmentary portion of the carriage of the machine;

Fig. 4 is a vertical sectional view taken substantially at the line 44 of Fig. 2;

Fig. 5 is a vertical sectional View taken substantially at the line 5-4 of Fig. 1;

Fig. 6 is a view similar to Fig. 5 but showing a changed position of some of the parts;

Fig. 7 is a diagrammatic view showing on an enlarged scale certain of the framework and operating parts as seen in Fig. 2, with some of the parts broken away and with other parts omitted;

Fig. 8 is a top plan View of the table or tray disengaged from the carriage upon which it is normally mounted;

Fig. 9 is a top plan view of one corner of the front portion of the table or tray shown on a considerably enlarged scale as compared with Fig. 1;

Fig. 10 is a vertical sectional view taken substantially at the line !B!il of Fig. 11;

Fig. 11 is atop plan View corresponding to the showing of Fig. 9 but showing in connection therewith a corner of the body portion of the table or tray;

Figs. 12 and 13 are vertical sectional views taken on an enlarged scale at the line |2-|2 and the line |3 -|3, respectively, of Fig. 1;

Figs. 14, 15 and 16 are vertical sectional views taken at the line |4-|4, the line |5|5, and the line |5|6, respectively, in Fig. 12;

Fig. 17 is a vertical sectional view taken substantially at the line ||--|'i of Fig. 16; and

Fig. 18 is a view similar to Fig. 1'7 but showing a changed position of the parts.

Referring now to Figs. 1 to '7 inclusive, the machine comprises a frame supported from a cabinet 25. In the arrangement shown, the frame at each side of the machine comprises two frame bars 21 and 28 having a longitudinally extending slot 29 between the bars at each side of the machine. Underneath the bars 21, there is provided a transversely extending frame member which has upwardly extending arm portions 3| at its ends in slightly spaced relation to the side faces of the frame bars 21, as is clearly shown in Fig. 4. only one end portion of the frame bar 33 being shown. Upon the upper ends of the arms 3|, I have provided a transverse frame member 32, the frame members 30, 3| and 32 constituting the principal carrying parts which are adapted to be moved back and forth along the frame 25, such parts constituting the framework of the carriage of the machine.

The means for mounting the carriage movably upon the frame 25 comprises a bar 33 mounted longitudinally of the carriage at each side there of, such bar being held by means of bearing balls 34 in anti-friction relationship with a channel bar 35 carried by the frame member 21 at each side of the machine.

Between the frame bars 21, there is mounted a bed plate 36 of any approved form over which a duplicating pad or band 31 is stretched, such duplicating pad being preferably of the type having a gelatinized face so as to be capable of receiving the ink from a master sheet applied thereto. In machines of this type heretofore in use, means have been provided for holding the duplicating pad 31 in operative position and for shifting it as may be desired with respect to the bed. Inasmuch as this holding and adjusting means forms in and of itself no part of the present invention, it is believed to be unnecessary to describe it further in detail. 7

Upon the frame plate 32, there is mounted a housing 38 of any approved form extending across the machine from one side to the other, as is clearly shown in Fig. 1. Within the housing 38, there is mounted a platen roller 39 so as to be free to rotate and so as to be movable vertically toward and from the duplicating pad 31. In the arrangement shown, the platen roller 39 is mounted by means of a shaft 4|! journaled at its ends in the arms of a yoke 4| which is pivotally mounted upon a shaft 42 journaled at its ends in the end walls of the housing 38. For turning the shaft 42 so as to swing the yoke 4| and the platen roller 39 vertically toward and from the duplicating pad, a handle 43 is mounted upon the shaft at an intermediate point therealong, such handle being provided with a forwardly extending lug 44 thereon (see Fig. 5). The arrangement is such that when the lever or handle 43 is standing in its normal position as shown in Fig. 5 the platen roller 39 is held in raised position, the roller 39 being given an operative stroke downwardly toward the duplicating pad upon a backward stroke of the handle 43 into the position as shown in Fig. 6.

Means is provided at the rear edge portion of the housing 38 for supporting a copy sheet such as a pay check, such means comprising an obliquely disposed tray or table 45 along which a copy sheet such as the sheet 46 as shown in Fig. 5 is slidable into engagement with a margin bar 41. In the arrangement shown, the margin bar 41 is movably mounted in position by means of brackets 48 which in turn are pivotally mounted upon pins or rivets 49 carried by the end walls of the housing 38 (see Fig. 6). Coiled springs 59 are connected at their rear ends with the brackets 48 and at their forward ends with the shaft 42, serving normally to hold the brackets in the position as shown in Fig. 5 with the margin bar '47 in substantial alignment with the tray 45 so as normally to engage the forward edge of a copy sheet 46 carried by the tray. The arms of the yoke 4| are provided with pins 5| in position to engage the brackets 48 upon downward movement of the yoke so as to swing the brackets and the margin bar 4'! in clockwise direction from the position as shown in Fig. 5 to the position as shown in Fig. 6 against the action of the springs 59 when the handle 43 is moved backwardly to the position as shown in said Fig. 6. A spring 52 is provided upon the shaft 42 so as to engage the yoke 45 serving normally to hold the lever or handle 43 in substantially vertical position as shown in Fig. 5, with the platen roller 39 in raised position. A pressure roller 53 is journaled in position adjacent to the platen roller 39 so as to be adapted by cooperation with the platen roller to grip a copy sheet such as the sheet 46 when pushed downwardly by the platen roller as shown in Fig. 6.

Upon the front face of the housing 33, a transversely extending lever 54 is pivotally mounted by means of a bolt 55 (see Fig. 3), such lever 54 having its inner end positioned underneath the lug 44 carried by the handle or lever 43. The arrangement is such that upon forward movement of the lever 43 from the position as shown in Fig. 6 to the normal position as shown in Fig. 5, the lever 54 is, swung in counter clockwise direction in Fig. 3 for raising the outer end of said lever 54 so as to effect a movement of associated means as hereinafter described.

Means is provided for giving the carriage a step by step movement toward the right in Figs. 2' and 7, comprising a pair of levers 56 and 5! which have releasable engagement with a rack bar 53 carried by the frame 25. The lever 56, as is best shown in Fig. '7, is pivotally connected by means of a pin or rivet 59 at an intermediate point with a bellcrank lever fiflwhich is pivotally mounted upon a pin or bolt 6| carried by a longitudinally extending bar 62-mounted upon the frame bar 3| by means of machine screws 63 and 64. At the forward end of the forwardly extending arm of the bellcrank lever 69, two lugs 65 and 65 are provided in vertically spaced relation to each other.

Upon the pin or bolt 6| (see Fig. 4:) adjacent to the bellcrank lever 66, there are provided two short arms or levers 69 and I0 with a ratchet wheel H mounted therebetween, all of such parts being loosely mounted upon said bolt 6|. Between the free forward ends of the levers 69 and 19, there is mounted a pawl l2 having its rear end in engagement with the ratchet wheel 7| so that upon movement of the arms or levers 69 and 15 in clockwise direction in Fig. '7 the ratchet wheel is given a corresponding rotary movement. A second pawl 13 is likewise mounted so as to engage the ratchetwheel' 1|, such pawl! 13. being'pivotally mounted: upon the arm- 3lofLtheframe; member 30. The pawl "normally. is-supaported in full operative engagement with the ratchet wheel. H by means of an arm. 14 risin from the lever 51. The lever 51 is pivotally mounted by means of a bolt 15 upon a bracket 16 carried by the frame arm 3|.

In the arrangement shown,,t-he lever-Wis connected by a coiled spring "with an arm 18 carried by the bracket lose as normally to hold the levers B8. and T8, in lowered position in engagement with the lug 85 of the bellcrank; lever 68. The rear end of the lever 51 is connected by meansof a spring "15 with the machine screws.

84 directly above so as to hold the lever 51' normally turned to the limit of its, movement in counterclockwise direction in Fig. 7. A spring 80 connected between the downwardly extending arm of the bellcrank lever 68 anda, suitable portion of the framework serves normally tohold the bellcrank lever turned to the limit of' its movement in counterclockwise direction insaid Fig, 7. A fiat spring 8| carried by the bracket 1.6 and bearing on the lever 58 normally holds:

such lever 56 turned to the limit of its motionin-counterclockwise direction in said-Fig; 7;.

As is clearly shown in Figs. 2 and 7, the rack bar. 58. is provided with a plurality ofsu bstantial- 1y square notches 82 arranged in spaced relation,

to each other therealong, together with a substantially V-shaped notch 83 in its forward end. For convenience of reference thereto, the first two, of the square notches at the forward end of thebar 58 are designated as 82a and B'Zbrespeetively, in said Fig. 7. The forward end portions ofthe levers 56 and are turned downwardly to provide arms or lugs 84 and 85 thereon, thelug 84 being shaped to conform tothe shape of the notch 83. of the lever 5'! is turned into horizontal position so as to provide an engaging portion: 85. in position to engage one or another of the notches 82 in therack bar 58.

With the parts in the arrangement as shown in Fig. 5 with the handle or lever 43 in its normal substantially upright position, and with the. lug

8.6 of the lever 5'! engaging the notch 82a of the rack bar 58, the lever 54 will be standing with its inner end depressed and itsouter end raised so as to hold the arms 69 and ill in their uppermost position, such arms in this position serving by engagement with the lug 66 on the bellcrank lever 60 to hold the lever fiflswung backwardly to the limit of its motion above the pivot pin 59: In this position of the parts, the lug 84 of the lever 55 will be standing in engagement with the top face of the rack bar 58 at the left of the downwardly and to swing the bellcrank lever 88" in counterclockwise direction in Fig. 7 for carrying the lever 55 into position for permitting the lug 84 to engage the notch 88 of the rack bar 58 under the influence of the flat spring 8!. Up

The lower end portion of the-lug 85- wardly, theplatenzroller 38. is brought. into operative engagement with the copy sheet 46 which is. pressed downwardly by the platen. roller into.operative engagement with the duplicating pad 3:? for atransfer. of thefirst line of printing from the pad. 3.1- to .thecopy sheet.

After the proper pressure has been applied upon the copy sheet 48, the lever 43 isagain. moved. manually to its normal. forward. position. The arrangement of theparts issuch that upon the upward movement of the platen roller 39. such. roller. cooperates with: the. pressure roller 53: for stripping the" copy sheet from the gelatin padi 3.1. At the same timeythe lug 4.4 by engagement'with the lever 54 causes the outer. end

of .saidlever 54: to move upwardly for raisingr'thel arms 8.9:and; so as to give. the pawl 12 anoperative stroke-for. rotating. the ratchet wheel H in clockwise directionin: Fig. 7. This rotation. of the ratchet wheel H; serves to force the pawl l3 downwardly by a camming action thereon so as to press downwardly on the arm 74 carried by the lever 57 for causing such lever 5'! to swing in-clockwise direction in Fig.7 out of engagement with the rack bar 58 against the action. of the spring. 13;. As. the upward swinging movementofjthe arms 69 and I8, continues, such arms arebrought into engagement with the lug carried by thebellcrank lever 68, after which. the still furthercontinued upward swinging of the arms causes the bellcrank lever to swing back-- wardly'about the pivot, pinp59 so as'to carrythe pin- 5.! andthe" carriage upon which such, pin: is mountedtoward the rightinFig. '7 for bringing the lug 85. of the lever 51' into position; directly above: thenotch 82b oftherackbar 58. The arrangement is such that at the time when the lug- 88 comes opposite; to saidnotch 82b in the.

rack bar, the; ratchet wheel. 'II in its rotary move merit reaches such a position that the pawl 13 clears the engaged tooth of the ratchet wheel. so as to permit the spring I9 to swing the lever 51 in counterclockwise direction in 7 for bringing the lug 86 into. engagement with said 7 notch 82band for bringing the pawl 13: into enlever 6,0'being held then against a return swingingmovement tothe position as shown in Fig. 7 by the lever 5t which continues to hold the arms 68 and 10- at this time in their uppermost position. Upon the next subsequent stroke of thehandle or lever 43backwardly afterthe insertion of a new copy'sheet upon the tray 45, the arms 69 and I0- are moved downwardly again by the spring 11 as above described, such spring H serving: also to move the bellcrank lever 68 in counterclockwise direction about. the pin 5| to the position as shown in said Fig. 7, such counter--' clockwise movement of the lever 58 serving to shiftthe lever 56- from its engagement with the notch 83 to. engagement with the notch 82a.

As is clearly shownin-Fig. 2, the frame bar 2,! at the nearside of the, machine is providedwith a forwardly-projecting lug 81' which is held, ad-

justably" in, position, in, the arrangement shown,

by a mechanism, comprising a set screw- 88-. At

' the, forward end of themachine, a. bracket 8.9.is,

on the continuedmovement: ofthe lever 4.8.back

provided, pivotally mounted upon a horizontal axis so as to be moved into and out of position in alignment with the lug 81, such bracket in the arrangement shown being in the form of an angle bar comprising a vertically extending arm by which the bracket is swingingly mounted in position and a longitudinally extending arm fixedly mounted on the end of the vertically disposed arm.

Upon the frame member 3| of the carriage, there is mounted an arm or lever 99 adapted to swing backwardly and forwardly about the transverse horizontal axis and provided with a pin 9| at its end extending transversely of the machine into position between the lug 81 and the bracket 99. The arrangement is such that, upon backward movement of the carriage toward the right in Fig. 2 to the limit of its movement, the pin 9| is brought into engagement with the lug 81 so as to swing the lever 99 toward the left in Fig. 2 into engagement with a stop pin 99a carried by the carriage frame member 3|. In this movement of the lever 99, the pin 9| pushes downwardly on the levers 56 and 51 at their rear end portions so as to lift the forward ends of said levers out of engagement with the rack bar 58 against the action of the springs 8| and I9. Inasmuch as the lever 99 and the pin 9| in their movement toward the left in Fig. 2 by contact with the lug 81 as above described move into past-center position with respect to the axis of said lever 99, the levers 56 and 51 are of course retained in their inoperative position until such lever 99 is swung again toward the right into its normal position as shown in Fig. '7. The arrangement is such that, when the carriage is moved to the limit of its motion toward the left in said Fig. '7, with the bracket 89 in its operative raised position as shown in solid lines, the bracket 89 engages the pin 9| so as to swing the lever 99 again into its normal position as shown in Fig- 2.

When the carriage has been moved to the limit of its motion toward the left in Fig. 2 and has then been returned toward the right for starting a duplication operation, the lever 57 is held out of engagement with the V-shaped notch 83 but is permitted to drop into engagement with the first square notch 82a at the left so as to stop the backward movement of the carriage. Under these circumstances, the lever 5'0 stands in position with its lug 84 engaging the top face of the rack bar 58 at the left of the notch 83, the lever 56 being adapted to remain in this position until the bellcrank lever 69 is swung in counter clockwise direction in Fig. 7 into the position as there shown, which movement of the bellcrank lever takes place upon the next succeeding movement of the handle or lever 43 backwardly into the position as shown in Fig. 6. This movement is timed to occur at about the time when the platen roller 39 reaches its lowermost position.

It will be understood that the lever 99 may be moved manually, independently of the action of the lug 8'! and the bracket 89, into its operative position in which it holds the levers 56 and 51 out of engagement with the rack bar 58. It will be understood also that when the lever 99 is in its forward operative position, with the bracket 99 swung downwardly out of its operative position, the carriage is then free to move back and forth to the limit of its motion in either direction so as to be capable then of being employed like any ordinary hectograph duplicating machine independently of any step by step forwarding movement of the carriage. It will be understood further that with the bracket 89 swung upwardly into operative position, the carriage can be set at any desired operative position along the rack bar 59, this being effected by a manual manipulation of the levers 56 and 51 through the medium of the lever 99 and the pin 9|.

In the machine as shown in the drawings, the carriage which is movable along the bed is provided with a tray or table member 92 in substantially horizontal position underneath the frame member 39, as is clearly shown in Fig. 5, for use in lieu of the tray 45 for supporting a copy sheet in the form of an individual record card, being provided with an opening 93 therethrough for the movement of the platen roller 38 into operative printing position as shown in Fig. 6. At its forward end, the tray member 92 is provided with an extension tray member 94 pivotally mounted in position upon the body member 92 of the tray by means of pivot pins 95 and 96 carried by the tray member 94 and extending into socket members 91 carried by the tray member 92. As is best shown in Figs. 9, 10 and 11, the tray member 94 is provided with a backwardly extending lug 98 adapted in the normal horizontal position of the tray member 94 to engage an opening 99 in the tray member 92. The arrangement is such that the two tray members 92 and 94 are held firmly in connection with each other so long as the front tray member 94 remains in its horizontal position, but such that when the tray member 94 is swung upwardly for carrying the lug 98 out of engagement with the opening 99 the extension tray member 94 can be moved sidewise out of engagement with the socket members 97 for eifecting a separation of the extension member from the body member.

The tray member 92 in the arrangement shown is provided with supporting wheels I99 adapted by engagement with the frame members 21 to support the tray member in normal spacedrelation to the bed 36. In like manner, the tray member 94 is provided with supporting wheels |9| in position normally to engage the frame members 21. At its side edges, the tray member 92 is provided with side margin bars I92 fixedly secured in position.

Margin bar means is provided for controlling the position of a copy sheet in the form of a record card upon the tray longitudinally of the machine with the card lying face down flat on the tray underneath the platen 39, being adjustably mounted in position upon the carriage of the machine by means of a longitudinally extending slide bar I93. As is clearly shown in Figs. 12 and 13, the forward end of the bar I93 is connected directly with the frame member 38 of the carriage, and the rear end of the slide bar is mounted in position by means of a bracket I94 extending rearwardly from the tray member 92. Immediately above the slide bar I93, there is a second bar I95 also connected directly with the frame bar 38 of the carriage, being supported at its rear end by a bracket I99 rigidly connected with the bracket 94.

In the arrangement shown, the rod or bar I93 is made adjustable with respect to the table or tray 92. For effecting this result, the rear end portion of the bar where it extends through the parts I94 and I99 is threaded, as shown in Fig. 13, being held in position by nuts |93a and I931) which are capable of adjustment along the bar an adjustment.

eprised for changing its position longitudinally of the machine with respect "to the tray.

'As is best shown in Figs. 12 and 13, the slide bar I03 is provided With annular grooves I01 thereabout in suitable spaced relation along the bar. Upon the slide bar I03, a slide block I 08 is 'adjustably mounted, said block being provided with a groove bar I05, as is best shown 'in-Fig. 16, the bar I05 serving to hold the block I08 inits hbrr'nal operative position as shown in said figure. The block 'I08 is provided with a handle I I extendi'rig from its side face for expediting movement of the block aldn'g'the bars I03 and I05.

As is clearly shown in Figs. 16 and l7, theblock I08 is Provided at its bottom face with a deep groove II I which provides a recess abbu't the rod I03 for the reception "of a clutch device 'II L'. In the arrangement shown, the clutch device I I2fis in the'form of an elastic made from a length of coiled spring, the ring being of such 'sie that it is adapted to gripthe reduced portions of the rod or bar I03 at the grooves I01, as is shown ill Fig. 17. The arrangement is such however that when the blocl; toward the right into the posinbn as shown in Fig. 18, for example, the elastic bahd or ring I-I'2 expands for permitting "such movement. The arrangement is such that with the parts in the position as shown in H2 holds the block I08 in predetermined normal adjustment with respect to the bar I03, with the ring I I2 centered in the groove I01. While the clutch member is eil'ective for-holding the block I08 normally in readily movable along the bar'upoh the application of pressure upon the handle III) for 'efiectihg The bar I05 is provided on its top fade with a strip [I3 which is graduated ti) correspond to the spacing of the grooves I01 in the bar I03 serving adjusted position of the block I08 l on g itud iiial-ly of the machine.

As is best shown in extending arm to indicate at anytime the Figs, 12 and 16, a forwardly H4 is pivotally nausea the block I08 by means "of upwardly tamed ear portions II5, such arm at its forward end being provided with a trahsve'sely phsitidh'ed margin bar member IIB rigidly mounted 'on the aim for engagingthe Fig. 8. The margin bar I I6 is preferably roiisa of sheet metal in the form of ah angle compris'ihg a vertically positioned pardon resting updn the tray or table 92, the forward edge portionof the bar being obliquely positioned as shawn at II 1 for expediting the movement of a copy sheetinto effective engagement with the bar. In the cohstruction illustrated, the tray 92 is provided with upwardly open grooves I I8 extending longitudinally of the machine, the margin bar II'G being providedwith downwardly extending lugs H9 in position to engage the groovesso astoprevnt a copy sheet from slipping between the margin bar and the table or tray.

At opposite sides of the machine, stop devices are mounted upon the margin bar IIB so as to be adjustable transversely of the machine on the :bar. Each of these stop devices is in the form of a piece of sheet metal I20 held in position on the margin bar :by means of a rivet I2'I extending through said sheet metal piece and through a slot I22 in the end portion of the margin bar, as is best shown .in Fig. 8. The connection of the rivet I2I with the sheet metal {piste I20 is rem forced by means of a block I23 I09 in its upper face engaging the" I08 is r'noved along "the rod I0 3 1'? the clutch member adj li'sted position, the block is end of a record care as shown in which is provided wanna-s 2 4 which extend u wardly through the slot 122 61 assisting in holding the device in tpem'iv position. "At its forward end, the sheet operate in three different manners. With the bracket 8'9 in lowered position, the machine operates for general use independently of system work. With the bracket 89 raised, the machine is in condition for either 'oftwo types of system operation. A weekly pay roll having been produc'e'd on the gelatin pad, showing the work of 26 workers, for example, the required 26 pay checks can be printed as above described by the use of the tray 46. Thereafter, the stop IIB may be set at the "desired Zpoint longitudinally of the tray 92, as indicated by the scale on the bar I I3 for copying the pay roll subject matter on the individual record cards of the workers involved. If the pay roll is the first of "a new fiscal year, the stop I I6 would be 'set at the No. 1 position as indicated by the scale. The carriage is then set-at the starting-position as indicated by the scale on the frame bar 21 at the far side of the machine, as shown in Fig. 1, and the'in-dividual record cards of the "several workers are presented one at a time at the successive "step positions "of the carriage, each card being placed in turn flat on the tray 92 with its end squarely against the margin bar I I 6. Each card in turn is pressed against the appropriate line of the gelatin pad by the platen '3! under the control of the lever or handle 43, the carriage being given astep movement between each two successive impression operations. With-the cards of the several workers presented in the same order as that in which the names appear, the data relating to each worker on the pay roll is copied on that worker's record card .at the desired point thereon.

By the use of the improved arrangement, I am enabled to bring the margin bar II6 very easily intothe desired adjusted position for insuring that the point at which the copy sheet is pressed into printing relationship shall correspond with the positions of successive lines of subject matter on the duplicating pad. This result is effected by an adjustment of the rod I03 longitudinally of the carriage by means of the nuts I03a and W311.

By the use of the improved construction as abdve described, I am enabled very quickly and easiiy to adjust the margin bar IIS with respect to th carria-ge of the duplicating machine for controlling the .point on a copy sheet at which a prihtirlg operation shall be carried out as set forth "above. By the provision of the improved construction, the availability of the machine for veriedu'se is substantially improved.

While the form and arrangement of parts as above described are preferred, it is to be understood that the invention is not limited to the arrangement illustrated except so far as the claims may be so limited, it being clear that changes might well :be 'made in the construction withoutdeparting from the invention.

I claim: I I v 1; A flat bed duplicating machine, comprising the margin bar at any of a series of successive stop positions but adapted to yield for adjustment of the margin bar from one stop position to another, and means for giving said carriage successive step movements along the bed for bringing :copy sheets into printing relationship with different portions of the duplicating pad.

2. A flat bed duplicating machine, comprising in combination a frame, a bed mounted on said frame and provided with means for holding a duplicating pad in position thereon, acarriage movable along said bed longitudinally of the machine, a tray on said carriage for supporting a copy sheet, means for forcing the copy sheet at a predetermined point on the tray into printing relationship with said duplicating pad, a slide bar mounted on said carriage longitudinally thereof a short distance above said tray at about the middle ofthe machine transversely thereof, a margin bar slidably mounted on said slide :bar so as to be held in transverse position a short distance above said tray in any desired adjustment longitudinally of the machine, adjustable means for holding said margin bar releasably in position on said slide bar at any of a series of suecessive stop positions in predetermined step relation to each other, and means for giving said car-riage successive step movements along said bed for bringing copy sheets into printing relationship with different [portions of the duplicating pad.

3. A flat bed duplicating machine, comprising in combination a frame, a bed mounted on said frame and provided with means for holding a duplicating pad in position thereon, a carriage movable long said bed longitudinally of the machine, a trayv on said carriage for supporting a copy sheet, means relation ship with said duplicating pad, a slide bar mounted on said carriage longitudinally thereof a short distance above said tray, a slide block adjustably mounted on said slide bar, a 'rnargin bar movably connected with said side machine, a tray on said carriage for supporting a copy sheet, means for forcing the copy sheet at a predetermined point on the tray into printing relationship with said duplicating pad, a slide bar mounted on said carriage longitudinally thereof a short distance above said tray a slide for forcing the copy sheet at z a predetermined point on the tray into printing block adjustably mounted on said slide bar, an arm pivotally mounted on a transverse axis of said slide block, a margin bar connectedwith said arm so as to rest onsaid trayintransverse position thereon, adjustable means for holding said slide block releasably in position'on said slide bar at any of a series of successive stop positions therealong, and means for giving said carriage successive step movements along said bed for bringing copy sheets into printing relationship with different portions of the duplieating pad. 7

5. A fiat bed duplicating machine, comprising in combination a frame, a bed mounted on said frame and provided with means for holding a duplicating pad in position thereon, a carriage movable along said bed longitudinally of the machine, a tray on said carriage for supporting a copy sheet, means for forcing the copy sheet at a predetermined point on the tray into printing relationship with said duplicating pad, a margin bar movably mounted on said carriage in transverse position thereon so as to rest on said tray and so as to be adjustable on the carriage longitudinally of the machine, tongue and groove connections between said tray and said margin bar for making the margin bar effective for stopping the edge of a sheet pressed thereagainst, releasable holding means adapted normally to hold the margin bar at any of a series of successive stop positions along the tray, and means for giving said carriage successive step movements along the bed for bringing copy sheets into printing relationship with different portions of the duplicating pad.

6. A fiat bed duplicating machine, comprising in combination a frame, a bed mounted on said frame and provided with means for holding a duplicating pad in position thereon, a carriage movable along said bed longitudinally of the machine, a tray on said carriage for supporting a copy sheet, means for forcing the copy sheet at a predetermined point on the tray into printing relationship with said duplicating pad, a slide bar mounted on said carriage longitudinally thereof a short distance above said tray at about the middle of the machine transversely thereof, a slide block adjustably mounted on said slide bar, an arm pivotally mounted on a transverse axis on said slide block, a margin bar connected with said arm so as to rest on said tray in transverse position thereon,upwardly open grooves in said tray longitudinally of the machine, lugs on said margin bar adapted to traverse said grooves as said margin bar is adjusted with said slide block so as to be effective for stopping the edge of a sheet pressed against the margin bar, adjustable means for holding said slide block releasably in position on said slide bar at any of a series of successive stop positions along the slide bar, and means for giving said carriage successive step movements along said bed for bringing copy sheets into printing relationship with different portions of the duplicating pad.

7. A flat bed duplicating machine, comprising in combination a frame, a bed mounted on said frame and'provided with means for holding a duplicating pad in position thereon, a carriage movable along said bed longitudinally of the machine, a tray on said carriage for supporting a copy sheet, means for forcing the copy sheet at a predetermined point on the tray into printing relationship with said duplicating pad, a

slide bar mounted on said carriage'longitudinally thereof a short distance above said tray, a slide block adjustably mounted on said slide bar, a margin bar movably connected with, said slide block so as to rest on said tray in transverse position thereon, releasable holding means adapted norm-ally to hold said slide block at any of a series of successive stop positions along the slide bar but adapted to yield for adjustment of the margin bar from one stop position to another, means for adjusting said slide bar longitudinally with respect to said carriage, and means for giving said carriage successive step movements along said bar for bringing copy sheets into printing relationship with different portions of the duplicating pad.

8. A flat bed duplicating machine, comprising in combination a frame, a bed mounted on said frame and provided with means for holding a duplicating pad in position thereon, a carriage movable along said bed longitudinally of the machine, a tray on said carriage for supporting a copy sheet, means for forcing the copy sheet at a predetermined point on the tray into printing relationship with said duplicating pad, a slide bar mounted on said carriage longitudinally thereof a short distance above said tray and having a series of successive notches therein in spaced relation to each other along the bar, a margin bar slidablymounted on said slide bar so as to be held in transverse position a short distance above said tray in any desired adjustment longitudinally of the machine, coiled spring means connected with said marginbar adapted by yielding engagement. with the notches in said slide bar normally to hold said margin bar releasably in. adjusted position along said slide bar, and means for giving said carriage successive step movements along said bed for bringing copy sheets into printing relationship with different portions of the duplicating pad.

9. A flat bed duplicating machine, comprising in combination a frame, a bed mounted on said frame and provided with means for holding a duplicating pad in position thereon, a carriage movable along said bed longitudinally of the machine, a tray on said carriage for supporting a copy sheet, means for forcing the copy sheet at a predetermined point on the tray into printing relationship with said duplicating pad, a rod mounted on said carriage longitudinally thereof a short distance above said tray and having a series of annular grooves thereabout in spaced relation to each other along the rod, a slide block slidably mounted on said rod and having a recess therein about the rod, an elastic ring on said rod in said recess adapted normally. by engagement with one of said grooves to hold the slide block in predetermined adjusted position on the rod but adapted to expand for movement from one groove to the next, a. margin bar connected with said slide block so as to'be held in transverse position on said tray, and means for givingsaid carriage successive step movements along said bedfor bringing copy sheets into printing relationship with different portions of. the duplicating pad.

10. A flat bed duplicating machine, comprising in combination a frame, a bed mounted, on said-frame and provided with means for holding a duplicating pad in position thereon, a carriage movable along said bed longitudinally of the machine, a tray on said carriage for supporting a copy sheet, means for forcing copy sheet at a predetermined point on the tray into printing relationship with said duplicating pad, a rod mounted on said carriage longitudinally thereof 7 a short distance above said tray and having a series of annular grooves thereabout in spaced relation to each other along the rod, a slide block slidably mounted on said rod and having a recess therein about the rod, an elastic ring on said rod in said recess adapted normally by engagement with one of said grooves to hold the slide block in predetermined adjusted position of the rod but adapted to expand for movement from one groove to the next, an arm pivotally mounted on a transverse axis on said slide block, a margin bar connected with said arm so as to rest on said tray in transverse position thereon, upwardly open grooves in said tray longitudinally of the machine, lugs on said margin bar adapteclto traverse said grooves as said margin bar is adjusted so as to be effective for stopping the edge of a sheet pressed against the margin bar, and means for giving said carriage successive step movements along said bed for bringing copy sheets into printing relationship with different portions of the duplicating pad.

11. A fiat bed duplicating machine, comprising in combination a frame, a bed mounted on said frame and provided with means for holding aduplicating pad in position thereon, a. carriage movablev along said bed longitudinally of the machine, a tray on said carriage for supporting a copy sheet, means for forcing the copy sheet at a predetermined point on, the tray into printing relationship with said duplicating pad, a rod mounted on said carriage longitudinally of the machine a shortv distance above said tray and having; a, series of annular grooves thereabout in spaced relation along the rod, a slide block slidably mounted on said rod, a clutch member in the form of an elastic ring mounted on said rod and of a. size for gripping the reduced portions of the rod at said; grooves and connected with said slide block so as normally to hold the block in adjusted position onthe rod but adapted to expand for movement from one groove to the next, a margin bar connected with said slide blockso as to beheld in transverse position on said tray, and means for giving said carriage successive step movements along said bed for bringing copy sheets into printing relationship with: different portions of the duplicating pad.

12-. A fiat. bed duplicating machine, comprising in combination a frame, a bed mounted on said frame and provided with means for holding a duplicating pad in position thereon, a carriage movable along said". bed longitudinally of the machine, a tray on said carriage for supporting a copy sheet, means for forcing the. copy sheet at apredetermined point onthe tray into printing relationship with said duplicating pad, a rod mounted on said carriage longitudinally of the machine, a short distance above said tray and having a series of annular grooves thereabout in spaced relation along the rod, a slide block slidably mounted on said rod, an endless band clutch member in the form of a coiled spring mounted onsaid rod and engaging said slide block for holding the block in adjusted position on the; rod by a gripping engagement with the reduced portions of the rod at said grooves but adapted; to; expand for; movement out of engagement with a groove, a margin bar connected with said slide block so as to be held in transverse position on said tray, and means for giving said carriage successive step movements along said bed for bringing copy sheets into printingrelationship with different portions of the duplicating pad.

13. A fiat bed duplicating machine, comprising in combination a frame, a bed mounted on said frame and provided with means for holding a duplicating pad in position thereon, a carriage movable along said bed longitudinally of the machine, a tray on said carriage for supporting a copy sheet, means for forcing the copy sheet at a predetermined point on the tray into printing relationship with said duplicating pad, a slide bar mounted on said carriage longitudinally thereof a short distance above said tray, a slide block adjustably mounted on said slide bar, an arm pivotally mounted on a transverse axis of said slideblock, a margin bar connected with said arm so as to rest on said tray in transverse position thereon, adjustable means for holding said slide block releasably in position on said slide bar at any of a series of successive stop positions along the bar, graduated means on said carriage for showing the adjustment of said margin bar thereon, and means for giving said carriage successive step movements along said bed for bringing copy sheets into printing relationship with different portions of the duplicating pad.

14. A flat bed duplicating machine, comprising in combination a frame, a bed mounted on said frame and provided with means for holding a duplicating pad in position thereon, a carriage movable along said bed longitudinally of the machine, a tray on said carriage for supporting a copy sheet, means for forcing the copy sheet at a predetermined point on the tray into printing relationship with said duplicating pad, a circular rod mounted on said carriage longitudinally of the machine a short distance above said tray and having a series of notches therein in spaced relation therealong, a slide block slidably mounted on said rod, an elastic clutch member carried by said slide block adapted by yielding engagement with one of said notches to hold the slide block in predetermined adjusted position on the rod but adapted to yield for the adjustment of said slide block along said rod, a margin bar movably connected with said slide block so as to rest in transverse position on said tray, a second slide bar on said carriage adapted by sliding engagement with a notch in said slide block to hold said block in normal operative position, and means for giving said carriage successive step movements along said bed for bringing copy sheets into printing relationship with different portions of the duplicating pad.

15. A fiat bed duplicating machine, comprising in combination a frame, a bed mounted on said frame and provided with means for holding a duplicating pad in position thereon, a carriage movable along said bed longitudinally of the machine, a tray on said carriage for supporting a copy sheet, means for forcing the copy sheet at a predetermined point on the tray into printing, relationship with said duplicating pad, a slide bar mounted on said carriage longitudinally thereof a short distance above said tray, a margin bar slidably mounted on said slide bar so as to be held in transverse position a short distance above said tray in any desired adjustment longitudinally of the machine, yielding means for holding said margin bar releasably in position on said slide bar at any of a series of successive stop positions along the bar, stop means carried by said transverse margin bar so as to be adjustable transversely of the machine thereon, means for releasably securing said stop means in adjusted position on the margin bar, and means for giving said carriage successive step movements along said bed for bringing copy sheets into printing relationship with different portions of the duplicating pad.

16. A flat bed duplicating machine, comprising in combination a frame, a bed mounted on said frame and provided with means for holding a duplicating pad in position thereon, a carriage movable along said bed longitudinally of the machine, a tray on said carriage for supporting a copy sheet, means for forcing the copy sheet at a predetermined point on the tray into printing relationship with said duplicating pad, a slide bar mounted on said carriage longitudinally thereof a short distance above said tray, a margin bar slidably mounted on said slide bar so as to be held in transverse position a short distance above said tray in any desired adjustment longitudinally of the machine, yielding means for holding said margin bar releasably in position on said slide bar at any of a series of successive stop positions along the bar, stop means slidably mounted on opposite end portions of said margin bar so as to be adjustable transversely of the machine thereon and arranged so as to be readily slidable out of engagement with the margin bar, means for releasably securing said stop means in adjusted position on the margin bar, and means for giving said carriage successive step movements along said bed for bringing copy sheets into printing relationship with different portions of the duplicating pad.

17. A flat bed duplicating machine, comprising in combination a frame, a bed mounted on said frame and provided with means for holding a duplicating pad in position thereon, a carriage movable along said bed longitudinally of the machine, a tray member on said carriage for supporting a copy sheet in horizontal position thereon, means for forcing the sheet at a predetermined point on the tray into printing relationship with said duplicating pad, margin bar means for controlling the position of a copy sheet on said tray, means for giving said carriage successive step movements along the bed,'an extension tray member, and means for removably connecting said extension tray member with said first-named tray member, comprising pivot pins carried by one of the tray members engaging sockets carried by the other tray member so as to permit said extension tray member to be slid transversely of the machine out of engagement with the other tray member, and a lug on one of said tray members adapted by engagement with the other tray member to prevent disengagement of the tray members when the extension member is in normal lowered position but adapted to stand free of said other tray member when the extension member is swung upwardly on said pivot pins.

HUBERT J AGGER. 

